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Phys.org / Woodcock charge deer to defend nests, footage reveals
American woodcock, short, plump shorebirds with long, thin beaks, are widely known for their bobbing stride and nasally "peent" calls, but not for being aggressive. Yet one April afternoon, when a deer sniffed around a woodcock ...
Phys.org / Himalayan pangolin emerges as distinct species, confirmed with DNA from 19th-century specimen
The pangolin is a midsize mammal found only in Africa and Asia. The pangolins' scales make them unique, but these scales have become their undoing. Pangolins are poached for their scales, making them the most highly trafficked ...
Phys.org / Physicists demonstrate Hong–Ou–Mandel interference with more than 10 atoms
In a new study published in Nature Physics, researchers have demonstrated the Hong–Ou–Mandel (HOM) effect with up to 12 indistinguishable neutral atoms—an effect that has been predominantly observed in photonic systems.
Phys.org / An iconic spear-throwing device likely wasn't used by prehistoric hunters until around 10,000 years ago
Archaeologists have long pictured prehistoric hunters taking down mammoths and other megafauna using the atlatl, a handheld spear-throwing device that uses leverage to achieve greater velocity and force when throwing darts. ...
Phys.org / What made trees possible? New research points to drought
A study is reframing a fundamental question in plant evolution: What made trees possible? Researchers from Cal Poly Humboldt, Yale University, the University of Hohenheim in Germany and the Czech Academy of Sciences set out ...
Medical Xpress / Fear-learning circuit shows how stress disrupts brain's ability to suppress trauma
Fear is often thought of as a negative emotion but is actually a natural protective response to perceived threats or danger. It helps us survive. When we experience a situation that causes fear, it becomes stored in our brain ...
Tech Xplore / AI-human relationships are real and come with risks, researchers find
Human-AI relationships are no longer confined to the domain of science fiction. As the technology has developed, AI chatbots have evolved from playing a role in search engines and image-generation tools into confidants, therapists ...
Tech Xplore / Why AI fiction still feels flat: New test shows characters lack mystery and complexity
Researchers at the University of North Carolina at Chapel Hill have found that while artificial intelligence can spin increasingly convincing stories, its characters may still lack one of the qualities that make human-written ...
Tech Xplore / Tandem solar cell sets 25.5% efficiency record with CIGS-perovskite design
A Berlin-based team from HZB and Center for the Science of Materials Berlin (CSMB) at Humboldt-Universität zu Berlin has set a new record for a tandem solar cell. Using a combination of a CIGS semiconductor layer and perovskite, ...
Phys.org / Primate brains might have evolved to 'catch up' with larger bodies, but then kept growing
A new analysis supports the previously overlooked "brain lag" hypothesis—the idea that, in some primate lineages, the evolution of larger body size preceded the evolution of larger brain size—while also building on that hypothesis ...
Medical Xpress / Moms' responsiveness to their babies may predict later childhood psychiatric disorders
When mothers were slower to vocally respond to their 1-year-old children's vocalizations, the children were more likely to have been diagnosed with a psychiatric disorder by age 7, according to a study published in PLOS One ...
Medical Xpress / Should lowest-risk prostate 'cancer' still be called cancer? How changing the name could save lives
A growing number of prostate cancer experts argue that calling the lowest-risk prostate cancer "cancer" does more harm than good. A new UCLA-led study found removing the cancer label could dramatically reduce overtreatment ...
